All the people who are now working from their home, getting used to it actually finding it is better than going to a stuffy ventilated office.
All the children home from day care and school, still engaged with learning and doing it in their education. Finding they learn better away from that often stressful environment.
All these families at home, working, learning and realizing that they can live their life this way. Not just live it, but enjoy a better quality of life.
When this is all done, how many will prefer the present arrangement to the former? Employers will also realize that the work gets done, done well; without a physical building to house the workers.
The buildings are soon vacant, and the economy seems to be doing fine with an evolved level of transaction. Clear thinking folk use the buildings for low and mid income housing, revitalizing our communities and making them a better place to live for everyone.
Can a virus do this? Why not, no one else seems to be able to.